1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <unistd.h>
31 #include <string.h>
32 #include <errno.h>
33 #include <pwd.h>
34
35 int
main(int argc,char * argv[])36 main(int argc, char *argv[])
37 {
38 char *plogin = NULL;
39 char cmds[BUFSIZ] = { 0 };
40 char sep[] = " ";
41 struct passwd *ppw = NULL;
42 int i, len;
43
44 if (argc < 3 || strlen(argv[1]) == 0) {
45 (void) printf("\tUsage: %s <login> <commands> ...\n", argv[0]);
46 return (1);
47 }
48
49 plogin = argv[1];
50 len = 0;
51 for (i = 2; i < argc; i++) {
52 (void) snprintf(cmds+len, sizeof (cmds)-len,
53 "%s%s", argv[i], sep);
54 len += strlen(argv[i]) + strlen(sep);
55 }
56
57 if ((ppw = getpwnam(plogin)) == NULL) {
58 perror("getpwnam");
59 return (errno);
60 }
61 if (setgid(ppw->pw_gid) != 0) {
62 perror("setgid");
63 return (errno);
64 }
65 if (setuid(ppw->pw_uid) != 0) {
66 perror("setuid");
67 return (errno);
68 }
69
70 if (execl("/bin/sh", "sh", "-c", cmds, (char *)0) != 0) {
71 perror("execl");
72 return (errno);
73 }
74
75 return (0);
76 }
77